/*
 * This file is part of aion-emu <aion-emu.com>.
 *
 *  aion-emu is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  aion-emu is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with aion-emu.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.aionengine.gameserver.model.gameobjects.player;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.HashMap;

/**
 * Manages the asking of and responding to <tt>SM_QUESTION_WINDOW</tt>
 *
 * @author Ben
 */
public class ResponseRequester {

    private Player player;
    private HashMap<Integer, RequestResponseHandler> map = new HashMap<Integer, RequestResponseHandler>();
    private static Logger log = LoggerFactory.getLogger(ResponseRequester.class);

    public ResponseRequester(Player player) {
        this.player = player;
    }

    /**
     * Adds this handler to this messageID, returns false if there already exists one
     *
     * @param messageId ID of the request message
     * @return true or false
     */
    public synchronized boolean putRequest(int messageId, RequestResponseHandler handler) {
        if (map.containsKey(messageId))
            return false;

        map.put(messageId, handler);
        return true;
    }

    /**
     * Responds to the given message ID with the given response Returns success
     *
     * @param messageId
     * @param response
     * @return Success
     */
    public synchronized boolean respond(int messageId, int response) {
        RequestResponseHandler handler = map.get(messageId);
        if (handler != null) {
            map.remove(messageId);
            log.debug("RequestResponseHandler triggered for response code " + messageId + " from " + player.getName());
            handler.handle(player, response);
            return true;
        }
        return false;
    }

    /**
     * Automatically responds 0 to all requests, passing the given player as the responder
     */
    public synchronized void denyAll() {
        for (RequestResponseHandler handler : map.values()) {
            handler.handle(player, 0);
        }

        map.clear();
    }
}
